Jan. 7, 2025 — A researcher has used advanced models that indicate that the formation of Pluto and Charon may parallel that of the Earth-Moon system. Both systems include a moon that is a large ...

The mucus membranes also contain Lieberkühn glands that secrete digestive enzymes that help break down food. Each villus has a central core called a lacteal that contains a network of tiny blood ...

Hepatitis B (sometimes referred to as hep B) is a liver infection caused by the hepatitis B virus (HBV). It typically causes symptoms like stomach pain, dark urine, fatigue, fever, jaundice (yellowing ...